Spurs have been labelled Los Blancos’ feeder club after selling them Gareth Bale and Luka Modric in recent years.
And according to Don Balon, the Spanish giants are reportedly plotting a stunning €200m move for Kane next summer - although Starsport understand Spurs won’t entertain any bids for their star striker.
Ginola understands if his old club would be tempted by such a mega-money offer for Kane.
But he wants Tottenham to show their ambition by keeping hold of the 24-year-old AND raiding Real Madrid for their two former stars.
"Why not think about building a team that in the next five, ten years will be the best in Europe?” Ginola said on the Alan Brazil Sports Breakfast on TalkSPORT.
"Bring Bale back to Tottenham and keep Harry Kane and bring in a new era for Spurs.
“I am talking about five, ten years coming, they will be brilliant.”
Spurs are currently playing at Wembley while rebuilding their White Hart Lane home into a state-of-the-art stadium.
And Ginola believes re-signing the Welsh and Croatian duo could help see Tottenham sell it out every week.
"Modric [as well] would be fantastic,” Ginola, who played 100 times for Spurs, went on.
“Modric in the middle of the park, Bale on the left hand side, Kane up front, Dele Alli as the number ten - that could be interesting.
"Why not make Tottenham the best team in Europe?
This is a gamble and I know it sounds crazy, but would you like to see at the new White Hart Lane 61,000 people watching a great team, challenging for the title every season, challenging for the final of the Champions League every season?"
Tottenham welcome Bournemouth to Wembley in the Premier League after the international break.
